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Chapter 12

Chapter 12. Cranium Part 2. Skull Classifications. __________________ Average __________________ Long __________________ Short. Topographical Landmarks. ________________ Between eyebrows ________________ Line connecting outer points of the eyes _________________

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Chapter 12

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  1. Chapter 12 Cranium Part 2

  2. Skull Classifications • __________________ • Average • __________________ • Long • __________________ • Short

  3. Topographical Landmarks • ________________ • Between eyebrows • ________________ • Line connecting outer points of the eyes • _________________ • Depression at bridge of nose

  4. Landmarks • __________________ • Area of upper lip and nasal septum • ____________ • Point of lower posterior mandible • ________________ • Tip of chin

  5. Ear Landmarks • ________________ • Large flap of ear • _____________ • Small flap anterior to EAM • ________________ • Top of ear where glasses sit

  6. Eye Landmarks • ______________ • Points of outer and inner eye • __________________ • Superior ridge of eye • ___________________ • Inferior ridge of eye

  7. Skull Lines • __________________ • Glabella to EAM • _______________ • Outer canthus to EAM • ________________ • Infraorbital margin to EAM

  8. Skull Lines • ___________________ • Acanthion to EAM • ___________________ • Closed lips to EAM • ___________________ • Mental point to EAM

  9. Watch out in skull imaging • Watch positioning lines • ____________ • ____________ • Pt condition • _______________!!!!!!!!!!!!!!!!!!!!!

  10. Imaging the Cranium Routine • PA Caldwell • AP Towne • Rt/Lt Lateral • Submentovertex (SMV) • 70-80-kVp • 40”SID

  11. PA Caldwell • Pt Prone • ____________________ • No Rotation or Tilt • _____________angle • CR to exit ______________

  12. PA Caldwell • _____________should be in lower _______________ • Lateral _____________equidistance from lateral ____________

  13. AP Towne • Pt Supine • _________________________ • _________angle for OML. _____for IOML • CR to enter EAM line. ________________

  14. AP Towne • ________________equidistance to lateral skull margin. • ________________in foramen magnum

  15. Rt/Lt Lateral • Pt in ________________with head turned in lateral • ___________________ • ______________ perpendicular to front edge of cassette • CR directed ______________to EAM

  16. Lateral • Rotation – ________________of bilateral structures • EAM • ________________ • Tilt – __________________ • EAM • __________________ • Sphenoid Lesser Wings

  17. Submentovertex (SMV) • Various ways to get position • ________________to cassette • CR ________________midway between ____________ exits vertex

  18. Sella Turcica Routine • AP Towne • Rt Lateral • 70-80 kVp • 40”SID

  19. AP Towne ____________to IR ____________ CR ____superciliary arch Tighter collimation Lateral Regular lateral position CR _________________ to EAM Tight collimation Sella

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